Carbureter.



PATENTED MAR. 10, 1908.

X 4 6. N0 881, l G KREBS- OARBURETER.

APPLICATION FILED APR. 12. 1907.

5 sums-sum 1.

INVENTORK ATTORNEYS No. 881,416. PATENTED MAR. 10, 1908.

C- KRBBS. GARBURBTBR.

APPLICATION FILED APR. 12, 1901.

5 SHEETS-SHEET 2.

I INVENTOR Ll'lflt'lEE Krebs QR:

WITNESSES:

BY M fim,

' ATTORNEYS m1 "mud! r-nrws co. WASNINGYDN, o c.

No. 881,416. PATENTED MAR. 10, 1908.

G. KREBS.

GARBURETBR.

APPLICATION mun APR. 12. 1907.

5 sums-532m s.

INVENTOR',

Charla s Krebs,

WITNESSES:

Drafisman,

GARBURETER.

APPLICATION FILED APR. 12. 1907. 5 SEEETB;SHEET L FIE? 37 a0 a i w r 43 WITNFSSES: 46 45 45 46 45 44- INVENTOR? llr arlas 1\ra'ha I ATTORNEYS run Mum": rrrmu'm wuwmmm n r n; a m. 5 5 D 1 w 1 1 wT. fim m B i g mw h mi m m m m .7 g: .m M. m H HQ 6 .m v H g N i 7 N, n fr a A 2 P. N 1 5 f x0 4 3 A 1 an E m h n a T W m ;,4 H WU, u H 0, 1- 3 .w m 5 K 4 1 m HUI 8. z n m 4/.--i1- A 1' New Jersey, useful Improvement UNITED STATES PATENT OFFICE.

To-all whom it may concern:

Be it known that 1, CHARLES KREBS, a citizen of the United. States, Newark, in the county of Essex and State of have invented certain new and s in Carburetors; and I do hereby declare the following to be a full, clear, .and exact descri tion of the invention, such as will enable otli to which it app same, reference ing drawings, an marked thereon, W specification.

The present invention has reference, generally, to improvements in carbureters for e present invention has eets to provide a novel ted apparatus or device feet admixture of the gasolene with air-is caused to produce the explosive .gas which is to be exploded in the cylinder of the gas engine.

The invention rovide in addition to ,erfa regulati novel means wi gas-engines; and th for its principal obj and simply in which a per gasole'ne and a the explosion c engine.

A further object 0 to-provide a nove ing chamber and air ;with, as well a 45"lene intake-valves,

regulated and of gasolene to chamber in w -form a proper exp conducted or explosion Other objec time more p clearly evident 5 descrigxt am ertains to make and use the being had to the accompanyd to characters of reference hich form a part of this construe has for its further object to rig-chamber provided with a thin said regulating chamber for controlling or regulating at will, the amount or quantity of the admixture of ir which is to be conducted to hamber or cylinder of the gas f this invention is to pro vide a gasolene reservoir or chamber provided with an automatically 0 erated means for controlling the supply 0 within the said reservoir by opening and l aising an inlet-valve as the level of the fluid within the reservoir becomes lowered or is 40 raised.

Another object of the present invention is 1 construction of carburet- -intake connected there-- vel construction of gasowhich are adapted to be set to permit a desired amount be drawn into said carbureting hich it is mixed with the air to losive gas which is to be exploded in the cylinder chamber of the gas-engine.

ts of this invention not at this arly mentioned will be from the following detailed ion ofthe same. thei,variotis objects of my presen. 'j l on of arrow .2.

to and CHARLES KREBS, OF NEWARK, NEW JERSEY.

GARB'UR-ETER.

Patented. March 10, 1908.

residing at vices and parts, as well'as in the construction of the same, all of presently more fully describe ers skilled in the art finally embodied in the clauses The invention is clearly illus invention; and Fig. 2 is a side the same.

or chamber is automatically the carbureting chamview illustrating more unit of the maximum quantity sive mixture to the engme;F1g.

the gasolene the engine.

downward direction. Fig. 9 is ciples of this invention. Figs.

chamber, said section being t l t-14 in said Fig. 13, looking Fig. 3 1s a transverse vertical-sec tion of the same, taken on. line 3-3 in th said Fig. 2 looking in the direction of the arrow :10; and Fig. 4 is a similar view illustrat'---.* ing, more particularly, how the supply'of' gasolene flowing into the gasolene-reservoir regulated. Fig. 5 is a longitudinal vertical minimum quantity of the gaseous mlxtu're'is to be admitted into the gas-engine; and Fig. 7 is a similar sectional representation of the same parts, showing the position of the regulator when in its entirely closed position, so that none of the mixed gases are admitted to Fig. 8 is a horizontal section of view of the regulating means by which the gas entering the regulating-chamber from the carbureting chamber is con- Fig. 13 is a horizon'tal section of the air-intake of the carbureting 13-13 in said Fig. 2, looking in a downward direction; and Fig. 14 1s a vertical section of the same, said sect on being taken on line invention in view, the same consists in the; novel carbureter for gas-engines hereinafter more fully set forth; and, furthermore, this invention consists in the general arrangements and combinations of the various'de details of the whichwill be .i d, and the'ri'-. f of the claims 5.1,; which are appended to and which form. an essential part of this specification. trated in t-he accompanying drawings, in Which:

Figure 1 is an end elevation of a carbu-; reter embodying the principles of the present elevation o shut-off and articularly the position of the regulator w en wide open to adof the explos5 6 is a similar section of the same parts, showing the regulator in lts relative position when only a the carbureter, said section being taken on line 8-8 in the said Fig. 1, and looking in a a top or plan -i view of the carbureter embodying the prin- 10 and 11 are 12 is an end aken on lme in the direcso section taken on line 5-5 in the said Fig. '1, looking in the direction of the arrow y, said be provided with a screw-threaded opening cone 10 of a needle-valve is adapted to be I vided with about or turned-over portion, the

the said rod 21 beingadapted to extend into spring 24 is arranged upon said rod 21, be-

Similar characters of reference are emloyed in all of the above described views to indicate corresponding parts.

Referrin now to the several figures of the drawin s, t e reference-character 1 indicates a comp ete carbureter, showing'one embodiment of the present invention, the same consisting, essentially, of a main shell or body 2, preferably of cylindrical configuration, said shell or body is rovided with a closed bottom 3 and is ma e withan open top, having a screw-thread 4 upon its inner surface, into which screws a cover or member 5, substantially as illustrated, and the whole being ada ted to rovide a gasolene-reservoir or hol er 6. Tlie said cover or member 5 may 7, situated near the outer circumferential edge of said cover or member, said opening 7 having screwed therein, a tubular valve seat member or element 8. The stem 9 and slidably arranged in the vertical opening or duct 11 in said valve-seat member and the cone 10 furthermore is adapted to engage, at proper times, with the cone-seat 12 located at t e upper end of said opening or duct 11. Said valve-seat member or element 8 is furthermore provided with an upwardly extending screw-threaded portion 13, to which is secured the end of a supply pipe 14 for conducting gasolene through said member or element 8 to the main holder 6. The endportion of the pipe 14 is suitably secured to said valve-seat member 8 by means of the union-coupling 15. Connected by means of a link 16 attached to the lower end of the valve-stem 9, which projects downwardly into the gasolene reservoir or chamber 6, or" in any other suitable manner, is a lever or arm 17, pivotally secured at one end to a V- shaped pintle or fulcrum 18 which is secured to the cover or member 5, substantially as shown.- The free end of said lever or arm extends inwardly toward the center of the gasolenereservo1r or holder 6, and it is prosame forming'a contact-piece 19.

Slidably arranged in a centrally dis osed opening or hole 20., in the cover or mem er 5, is a rod 21 which is providedwith a head 22,

the reservoir .or holder 6, and having its lower end connected by means of a link 23, or other suitablemeans of connection with the free-end of said lever or arm 17. A coiled tween the head 22 and the cover or member 5, to prevent the rod 21 from dropping on said lever or arm 17, and the tension of the spring being such, that under normal conditions it will not interfere with the movements of the valve-stem 9, nor will it cause the cone 10 of the valve-stem 9 to become seated upon the valve-seat 12, when the,

parts are in the positions indicated in Fig; 3 of the drawings, and thereby unnecessarily shut off the supply of the gasolene. A float 25 of cork, or any other suitable material, is arranged within the said reservoir or holder 6, the same being desi ned to ride or float upon the surface of t e liquid contained therein.

It will be clearly evident from an ins ection of Figs. 3 and 4 of the drawings, t .at, when a suflicient amount of liquid gasolene has entered the gasolene reservoir or holder 6, through the valve-mechanism just described, the float 25 rising with the level of said liquid will engage with the contact upward direction and consequently forcing the valve-stem 9 and its cone 10 also in an upward direction within the valve-seat member or element 8, until the cone 10 engages with the cone-seat 12, and closes the needle-valve. The inflow' of gasolene, is thus prevented and arrested, until the level in the reservoir or holder 6 again falls, whereby the float 25 and the lever or arm 17 again drops down, and the movement of the parts above described being reversed, the cone 10 moves away from the cone-seat 12, thereby o ening the valve and permitting the gaso ene again to freely flow into the reservoir or holder 6 It will be clearly evident, that these operations are purely automatic.

If at any time an increased quantity of gasolene is desired in the reservoir or holder 6, after the needle-valve has been closed, a slight downward pressure u on the knob 22 of the rod 21 will bring the ower end of the latter in contact with the lever or arm 17, thereby forcing said lever or arm, with the float down, and in the same manner opening the needle-valve, to permit the inflow of the extra quantity of gasolene.

A sup orting bracket 26 is secured to the side of t 1e shell or body 2, in any suitable manner, and suitably securedito and carried by said bracket are a plurality of tubular airconveying and gasolene-receivlng members 27, which are open at the top and bottom, and each one of which produces or forms a carbureting or mixing chamber 28. The bottoms or lower end-portions of sa1d tubular members 27 each extend into suitable openings in a base-plate 29, and are secured therein in any desired manner.

Slidably arranged upon the longitudinal marginal edges of said base-plate 29, so as to be brought underneath said tubular-members 27, is a shell or box-like member 30, provided upon its upper longitudinal sideedges with turned-over portions 31, prov ding grooves 32 which embrace and are s l1d ably arranged upon the said longitudinal finial edges of the said base-plate 29.

This shell or box-like member 30 forms an air-intake chamber 33, and is provided upon one side with a plurality of ho es or perforations 34, through which the air maybe drawn. The said holes or perforations 34 are normally closed by means of the gate 35, pivotally connected to a hinge-plate 36, which is secured tothe said shell or box-like member 30 by means of rivets 37, or in any other suitable manner. The said gate 35 is normally kept in its closed relation, so as to exclude the unnecessary entrance of dirt, dust and the like, into said chamber 33 by means of a spring 38, but the same is easily opened by the suction of the gas-engine whenit is desired to draw the air into the carbureter.

The gasolene is conducted from the gasolene reservoir or holder 6, into the several carbureting or mixing chambers 28, by means of a feed-tube 39 which is connected in any suitable manner with the bottom of said reservoir or holder, and enters through the sides so, to pass laterally through and diametrically across each tubular member 27 substantially in the manner illustrated in the several figures of the drawings. Said feedtube 39 is furthermore closed at its free-end in any suitable manner, by means of a plug or cap 40. The said feed-tube 39, where it passes through the interior of each tubularmember '27, which form the carbureting or mixin chambers 28, as has been stated, is provided with a hole or perforation 41, through which the gasolene may pass into each chamber 28 to be mixed therein. with the air. To regulate the proper spraying and the uniform flow of said gasolene through the said holes or perforations 41, there is provided opposite each of said holes or perforations, a cone or needle-point 42 which is formed with a screw-threaded shank 43 and a slotted head 44. The screw threaded shanks 43 are screwed into screw-threaded openings 45 in the said tubular member 27 and the said bracket 26, whereby the slight turning of the said shank 43 therein, will insert or withdraw the cone or needle-point 42 in its relation with the holes or perforations 41 of the feed-tube 39, thus affording an easy means of adjustment. To look the shanks 43 and the cones or needle-points 42, against any accidental disarrangement, after the same have been properly adjusted, suit able lock orjam-nuts 46 are provided, which are screwed upon the shanks 43 and against the bracket 26, to prevent the shanks 43 against turning in the screw-threaded openings 45, as will be clearly understood.

The upper ends of the tubular-members 27 open into, and are secured in suitably disposed openings or holes in a cylindrical shell, body or element 47 the same providing what may be termed a regulating chamber 48. Said cylindrical shell is provided at one end with a flange 49, formed with holes or openings 50 through which may be passed bolts, for the purpose of securing the said carbureter in its operative position upon the end of a gas-inlet pipe, leading to the cylinder or explosion-chamber of the gas-engine. Arranged in an oscillatory manner within said cylindrical shell 47 so as to turn therein, is a regulator, the same comprising a tubularportion or member 51. The inserted end of said member 51 is 0 en, and the opposite end is closed and is preferably provided with an annular shoulder 52, which rides against the outer edge of the said cylindrical-shell 47. Secured to the closed end of said tubularportion 51, upon a boss or enlargement is an actuating lever or arm 54 which is provided with a handle or finger-piece 55. The lever or arm 54 is securely held in its operative relation by means of the screw 56 and washer 53, or it may be otherwise connected with the closed end of the regulator 51, as will be evi dent. By means of this lever or arm the tubular-portion 51 can be turned or revolved within the said cylindrical shell 47, and set in any one of its regulating positions, for the urposes subsequently to bedescribed. The said tubular portion or element 51 is provided with an elongated and longitudinally extending opening or slot 57, which may be moved over and above all of the open ends of the tubular-members 27, forming the. carbureting or mixing chambers 28, so as to register with said open ends to permit the flow of the gaseous mixture into the regulatingchamber 48 from all of said tubular-membcrs, at one and the same time, as will be clearly seen from an inspection of Fig. 7 of the drawings. The said tubular-portion or element 51 is furthermore provided with a plurality of'holes or openings 58 which are preferably of the configurations shown'more particularly in Figs. 5, 7, 10 and 11 of the drawings, the hole or opening at the left end of the tubular portion or element 51 usuallybeing a circular hole, while the remaining holes are of an elongated shape, extending laterally upon the cylindrical surface of the element 51, and the lengths of said holes increasing from left to right of the element, in a manner clearly shown in Figs. 10 and 11. The purposes of ,the holes, varying in their lengths, is clearly evident, for it is owing to this arrangement of the holes that an open communication may be maintained between a single, or two, or three, or four of the carbureting or mixing chamber 48, to conduct a minimum or maximum, or an intermediate degree of the gaseous mixture to the explo ter and quicker mixture of air and gas is obtained; furthermore, by providing the regulating chamber above the carbureting chambers, as above described, it is possible to control and regulate the amount of gas to be conducted to the explosion chamber or cylinder of the gas-engine, by simply closing, by means of the tubular-portion or element, 51, one or more of the tubular members 27 against the passage of the gas therefrom, the result being that the gas may thus be taken from one or more of the said tubular-members 27, at will, and thereby using, at all times, the proper quantity or quantities of the gaseous mixture, the same being under the proper control of the operator.

I claim 1. In a carbureter for gas-engines, the combination. with a gasolene-holder, of a series of mixing tubes, each tube forming a mixing chamber, a feed-tube connected with said gasolene-holder, said tube extending into and diametrically across each mixing tube, said tube being provided with a series of outlets, each outlet establishing a communication with each mixing chamber of the respective mixing tubes, and means connected with each mixing thbe having a portion in engagement with, the outlets in said feeding tube for regulagin the s raying of the gasolene from said utIets,su stantially as and for the purposes set forth.

2. In a carbureter for gas-engines, the combination with a gasolene-holder, of a series of mixing tubes, each tube forming a mixing chamber, a feed-tube connected with said gasolene-holder, said tube extending into and diametrically across each mixing tube, said tube bein provided with a series of outlets, each outl et establishing a communication with each mixing chamber of the respective mixing tubes, and means connected with each mixing tube having a portion in engagement with the outlets in said feeding tube for regulating the spraying of the gasolene from said outlets, a regulating chamber in communication with all of said mixing tubes, and means in said regulating chamber for establishing communication with one or more or all of said mixing tubes, substantially as and for the purposes set forth.

3. In a carbureter for gas-engines, the combination with a gasolene-holder, of a series of mixing tubes, each tube forming a mixing chamber, a feed-tube connected with said gasolene-holder, said tube extending into and diametrically across each mixing tube, said tube being provided with a series of outlets, each outlet establishing a communication with each mixing chamber of the respective mixing tubes, and means connected with each mixing tube having a portion in engagement with the outlets in said feeding tube for regulating the spraying of the gasolene from said outlets, a regulating chamber in communication with all of said mixing tubes, and means in said regulating chamber for establishing communication with one or more or all of said mixing tubes,

comprising a tubular regulator arranged in said regulating chamber, said regulator having an oscillatory motion, said re lator being provided with variously dispose openings of different conformations, all arranged for establishing communication with one or more or all of said mixing tubes.

4. In a carbureter for gas-engines, the combination with a gasolene-holder, of a series of mixing tubes, each tube forming a mixin chamber, a feed-tube connected with said gasolene-holder, said tube extending into and diametrically across each mixing tube, said tube being provided with a series of outlets, each outlet establishing a communication with each mixing chamber of the respective mixing tubes, and means connected with each mixing tube having a portion in engagement with the outlets in said feeding tube for regulatin the spraying of the gasolene from said outlets, a re lating chamber in communication with afi of said mixing tubes, and means in said regulating chamber for establishing communication with one or more or all of said mixing tubes, comprising a tubular regulator arranged in said regulating chamber, said regulator having an 0scillatory motion, said regulator being provided with variously disposed openings ofdifi'erent conformations, all arranged for establishing communication with one or more or all of said mixing tubes, and an actuating lever connected with one end of said regulator, substantially as and for the purposes set forth.

5. In a carbureter'for gas-engines,'the combination with a gasolene holder, of a series of mixing tubes, each tube formlnga mixing chamber, a regulating chamber in communication with all of said mixing tubes, and means in said-regulating chamber for establishing communication with one or more or all of said mixing tubes, all combined with an air-receiving shell formingan air-intake, said shell being in communicatlon with said mixing tubes and being provided in one of its sides. with air-receiving holes, and a spring-controlled gate movably arranged over said holes, substantially as and for the purposes set forth.

6. In a carbureter for gas-engines, the combination with a gasolene holder, of a series of mixing tubes, each tube forming a mixing chamber, a regulating chamber in communication with all of said mixing tubes, and means in said regulating chamber for establishing communication with one or more variously disposed openings of difl'erent conformations, all arranged for establishing communication with one or more or all of said mixing tubes, all combined with an airreceiving shell forming an air-intake, said shell being in communication with said mixing tubes and being provided in one of its sides with air-receivin holes, and a springcontrolled gate movably arranged over said holes, substantially as and for the purposes set forth.

7. In a carbureter for gas-engines, the combination with a gasolene holder, of a series of mixing tubes, each tube forming a mixing chamber, a regulating chamber in communication with all of said mixing tubes, and means in said regulating chamber for establishing communication with one or more or all of said mixing tubes, comprising a tubular regulator arranged in said regulating chamber, said regulator having an In testimony, that I claim the invention set forth above I have hereunto set my hand this 10th day of April, 1907.

V CHARLES KREBS. WVitnesses FREDK. C. FRAENTZEL, FREDERICK JAMISON. 

